A staff reporterSalt Lake: The Salt Lake police on Thursday submitted a charge sheet against Sanjay Agarwal, 40, for murdering retired engineer and landlord Avijit Nag Choudhury , 57, and mutilating his body at his BD Block house. The 200-page charge sheet was submitted 85 days after the murder. Agarwal has been charged under IPC sections 302 (punishment for murder) and 120B (criminal conspiracy). Agarwal, who had rented a garage in Choudhury's house, was arrested hours after the murder. We are sure he will be convicted," said a senior officer of the Bidhannagar commissionerate.